Improvement in edge-burnishing machines for boots and shoes



G. A. FULLERTON.

EDGE BURN'ISHING MACHINES on BOOTS AND SHOES.

Patented May8, 1877.

UNITED STATES PATENT OFFICE.

GEORGE A. FULLERTON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO GEORGE H. P.FLAGG, OF SAME PLACE.

IMPROVEMENT IN EDGE-BURNISHING MACHINES FOR BOOTS AND SHOES.

Specification forming part of Letters Patent No. 190.4%, dated May 8,1877; application filed March 23, 1877.

To all whom it may concern:

Be it known that I, GEORGE A. FULLER- TON, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain Improvementsin Edge-Burnishing Machines, of which the following is a full, clear,concise,

and exact description, reference being had to the accompanying drawings,making a part hereof.

In the drawings, Figure 1 is a vertical section through the carriage orslide and toolstock of a burnishing-machine constructed, except as to myinvention, substantially as is described in Patent No. 173,284 to Helms,dated February 8, 1876. The other figures show details.

My invention relates, first, to the construction of the tool-stock andits connection with its supporter, and, secondly, to the construction ofthe tool.

In the drawings, A is the carriage or slide, and B the supporter for thetool stock. This supporter B is pivoted at a to the'car- 'riage A, andis pressed in one direction by a spring, 0. It is provided at its outerend with a boss, 12, upon which is mounted the tpolstock D. Thetool-stock D is composed ofa hub, from which project two (or one ormore) pins, 01 d. For each of the pins d d there is also a small spring,0 e, shaped as shown, and serving to hold the tool F in place, butwithout preventing it from swiveling. When only one tool is to be used,the hub of the toolholder may be firmly secured to or in one piece withthe supporter B, or the pin d may project directly from the front end ofthe supporter; but when it is desired to use two or more tools, thetool-holder should be formed with a hub, as shown, so that it may berotated to bring either of the tools in position for use, and a propercatch should be employed to hold it firmly.

The catch shown in the drawings consists of a small piece, f, with twopins projecting from it, arranged upon the supporter B, as shown, thepins passing each through a hole in the front end of the supporter, andprojecting into a hole in the hub of the toolholder D. A plunger, g, isalso connected to the piece f, and projects, as shown. Pressure upon thedisk on the forward end of the plunger throws back the piece f,withdraws its pins from the hub of the tool-holder, and thus allows thetool-holder to be freely rotated. The spiral spring around the plungerthrows it back, and thus locks the tool-holder in place.

The first part of my invention consists in the combination of the pin dand its spring 6 with the supporter B; and the second part of myinvention consists in the tool-holder D, provided with two or more pins,and mounted, as shown, upon ajournal or boss, b, on which it can beturned to bring either tool into operation, and provided with a catch tohold it securely.

The remaining part of my invention consists in forming the tool F with ahollow shank, h, adapted to fit upon the pin 'd, and with a notch orgroove, j, adapted to receive the spring 6. These tools are not onlyheld in place very securely, but can be very readily removed andreplaced, which is a great advantage.

Where it is desirable to limit the swivel of the tool, as is usually thecase in fore-part burnishing, I cut a groove, 7c, in the shank h of thetool, which fits over a pin, Z, on the tool-holder, the pin being lessin diameter than the width of the groove.

What I claim as my invention is- 1. In a burnish'ingmachine, the deviceabove described for sustaining the tool, consisting of the pin 01 andspring 6, mounted substantially as described.

2. The tool-holder D, provided with one or more pins, d d, and mounted,as shown, upon the journal or boss I), in combination with catch f andplunger 9, as and for the purpose specified.

3. The tool F, formed with a hollow shank, h, and with a notch,j, on theshank, adapted to operate in combination with the spring 6, as and forthe purpose specified.

GEO. A. FULLERTON.

Witnesses:

FRED. A. JOHNSON, SIMEON M. JOHNSON.

